body {
  font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
  user-select: none; /* 禁止用户鼠标在页面上选中文字/图片等 */
  -webkit-tap-highlight-color: transparent; /* webkit是苹果浏览器引擎，tap点击，highlight背景高亮，color颜色，颜色用数值调节 */
  background: $--color-background;
  color: $--color-text;
  /* rem vw/vh */
  width: 100vw;
}

a {
  color: $--color-text;
  text-decoration: none;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
